The classic baking soda and vinegar volcano experiment, popularized as a hands-on STEM activity for children, simulates an ...

Students will be able to explain that if two substances cause turn a pH indicator different colors, they must be different substances. Students will be able to explain that the color that a substance ...

Introduction Did you know that the juices in your stomach are nearly as acidic as lemon juice? Fortunately, your stomach has special cells that act as a barrier to the acid, preventing it from ...

Benzenesulfonic acid is the simplest aromatic sulfonic acid. It is highly water-soluble and a strong acid with a pK a of –2.8. It has been known since at least the 1880s; its synthesis, which goes ...